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Finding the Fourth Proportional to 69,637.74, 96,102.29 and 39,422.51

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Solution

The fourth proportional to 69,637.74, 96,102.29 and 39,422.51 is: 54,404.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,637.74 : 96,102.29 = 39,422.51 : x
  2. Step 2: Convert to fraction form
    69,637.74/96,102.29 = 39,422.51/x
  3. Step 3: Cross multiply
    69,637.74x = 96,102.29 × 39,422.51
  4. Step 4: Simplify right side
    69,637.74x = 3,788,593,531.69
  5. Step 5: Solve for x
    x = 3,788,593,531.69/69,637.74
  6. Step 6: Final answer
    x = 54,404.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.